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Topic Review
Modelling of Activated Sludge Process
The activated sludge process (ASP) is the most widely used biological wastewater treatment system. A typical model that would simulate the ASP operation will have the following steps: a model objective, data collection, mathematical equations or models for each ASP as mentioned above, model calibration, and model validation. There are three main types of modelling that have been historically used for the ASP: deterministic or mechanistic modelling, stochastic modelling, and hybrid models combining the two approaches.The most efficient models use hybrid models where stochastic modelling is used for the hard-to-define parameters and variables in the treatment process.
  • 873
  • 10 Jan 2023
Topic Review
SBA-15 synthesis variables
SBA-15 synthetized at different values of time and temperature of the hydrothermal treatment were mixture with tobacco in order to determine the capacity of reduction of toxic and carcirogenic compounds on tobacco smoke. The effect of temperature is not significative but time presents a remarked effect. And a parameter not frequently studied, the aparent density, has been shown the most relevant relation with the results on smoking experimentos. Finally, the effect of reduce the supernatant liquor also has been studied and the results have shown that the material properties remain practically unchanged.
  • 873
  • 01 Nov 2020
Topic Review
Advances in Translational Nanotechnology
       The burgeoning field of nanotechnology aims to create and deploy nanoscale structures, devices, and systems with novel, size-dependent properties and functions. The nanotechnology revolution has sparked radically new technologies and strategies across all scientific disciplines, with nanotechnology now applied to virtually every area of research and development in the US and globally. NanoFlorida was founded to create a forum for scientific exchange, promote networking among nanoscientists, encourage collaborative research efforts across institutions, forge strong industry-academia partnerships in nanoscience, and showcase the contributions of students and trainees in nanotechnology fields. The 2019 NanoFlorida International Conference expanded this vision to emphasize national and international participation, with a focus on advances made in translating nanotechnology. This review highlights notable research in the areas of engineering especially in optics, photonics and plasmonics and electronics; biomedical devices, nano-biotechnology, nanotherapeutics including both experimental nanotherapies and nanovaccines; nano-diagnostics and -theranostics; nano-enabled drug discovery platforms; tissue engineering, bioprinting, and environmental nanotechnology, as well as challenges and directions for future research.
  • 872
  • 30 Oct 2020
Topic Review
Nordic Folkboat
The Nordic Folkboat (Swedish: Nordisk Folkbåt) is a Swedish sailboat that was designed by Jac Iversen (sv) and Tord Sundén as a racer-cruiser and first built in 1942. Even though Sundén drafted the plans with design ideas provided by Iversen, Sundén was never credited as the actual designer of the boat. The Nordic Folkboat was developed into the Sundén-designed International Folkboat in 1967. The International Folkboat was expressly designed for fibreglass construction. The International 25 and the Olsen 26 are also based upon this design. The Junior Folkboat designed by Erik Salander (båtkonstruktör) (sv) actually dates from 1929. It was originally called the "Juniors Bad" (Junior boat), but was latter renamed because of its strong resemblance to the later and larger Nordic Folkboat.
  • 872
  • 04 Nov 2022
Topic Review
Quality Control in the Resistance Spot Welding Process
Resistance spot welding (RSW) is a process characterized by its high speed and adaptability for automation that renders it suitable for mass production. 
  • 872
  • 11 Nov 2022
Topic Review
Stairlift
A stair lift is a mechanical device for lifting people, typically those with disabilities, up and down stairs. For sufficiently wide stairs, a rail is mounted to the treads of the stairs. A chair or lifting platform is attached to the rail. A person gets onto the chair or platform and is lifted up or down the stairs by the chair which moves along the rail. Stairlifts are known variously as stair lifts, stair-lifts, chair lifts, stair gliders and by other names. This type of chair lift should not be confused with the chairlift used by skiers. The term stair climber can refer either to stair lifts, or more commonly to the exercise equipment by the same name. Some of the first stair lifts to be produced commercially were advertised and sold in the U.S. in the 1930s by the Inclinator Company of America. Many users at the time were victims of polio. Now they are seen for use in elderly, fall-prone individuals, and the disabled who are unable to navigate stairs safely.
  • 871
  • 10 Oct 2022
Topic Review
Mohawk Warrior
Mohawk Warrior (also known as Great Clips Mohawk Warrior since 2017) is a monster truck currently racing in the Monster Jam professional monster truck racing series. It is currently driven by Bryce Kenny, and was originally driven by George Balhan, former An Escalade driver, who debuted in 2010 during the Monster Jam World Finals XI Encore in the Obsession Chassis. It features one of the first trucks a decoration on the roof, which is a Giant Mohawk. The truck is also a successor to An Escalade. It also has an NGK Spark Plugs flag at the back of the truck, and was replaced by the Great Clips flags in 2017. It is sponsored by Great Clips since Bryce Kenny became the new driver of Mohawk Warrior after Balhan retired from Monster Jam.
  • 870
  • 25 Oct 2022
Topic Review
Microwave Kinetic Induction Detectors
Microwave Kinetic Inductance Detectors (MKIDs) are superconducting low-temperature detectors for photons or particles. They are based on the change of resonant frequency of superconducting LC resonators by Cooper pair breaking and their unrivalled scalability makes them one of the most promising novel low temperature detector technologies. 
  • 870
  • 29 Mar 2021
Topic Review
Per- and Polyfluoroalkyl Substances (PFASs) Destruction Technologies
Per- and polyfluoroalkyl substances (PFASs) are a family of highly toxic emerging contaminants that have caught the attention of both the public and private sectors due to their adverse health impacts on society. The widely adopted separation technologies can remove PFASs from being in contact with humans; however, they remain in the environment and continue to pose health risks. On the other hand, the destructive technologies can effectively destroy PFAS compounds and fully address society’s urgent need to remediate this harmful family of chemical compounds. 
  • 869
  • 06 Jan 2023
Topic Review
Hydrogen Embrittlement of Medium-Mn Steels
Recent research efforts to develop advanced–/ultrahigh–strength medium-Mn steels have led to the development of a variety of alloying concepts, thermo-mechanical processing routes, and microstructural variants for these steel grades. However, certain grades of advanced–/ultrahigh–strength steels (A/UHSS) are known to be highly susceptible to hydrogen embrittlement, due to their high strength levels. Hydrogen embrittlement characteristics of medium–Mn steels are less understood compared to other classes of A/UHSS, such as high Mn twinning–induced plasticity steel, because of the relatively short history of the development of this steel class and the complex nature of multiphase, fine-grained microstructures that are present in medium–Mn steels. The motivation of this paper is to review the current understanding of the hydrogen embrittlement characteristics of medium or intermediate Mn (4 to 15 wt pct) multiphase steels and to address various alloying and processing strategies that are available to enhance the hydrogen-resistance of these steel grades.
  • 869
  • 04 Nov 2021
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